Permutation mechanism



J. B. HELLER. PERMUTATION MEHANISM Patented Aug. 29, 1922.

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V APPLICATION FILED JUNE 2, 1919.

G a a J. B. HELLE'R.

PERMUTATION MECHANISM. APPLICATION FILED JUNE 2. 1919.

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I I :85 Z ze 15! fv l 33 -29 :It g? 51 1-16; I 1 1 lv INVENTOR.

. J. B. HELLER.

PERMuTATloN MEcHAmsM.

APPLICATION FILED IUNE 2, I9l9.

Patented Aug. 29, 1922.

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Hu. M141 INVENTQR.

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JESSE B. KELLER, 0F WILKINSBURG, PENNSYLVANIA., ASISIGNOR, BY 'MESNE ASSIGN- MENTS, TO NATONAL MOTOR CONTROL CO.,` A CORPORATION OF DELAWARE. y

PERMUTATION iviEonaivisivi.L

Maasai.

Specification of Letters Patent.

patear-ea aug. ee, ieee.

Application led June 2, 1919. Serial No, 301,319.

ff. 1o all 'Lo/0m t may concern Be it known that l, Jesse B. llnLLEn, a citizen of the United States, and residing at lillrinsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in PermuH tation Mechanism, oi which the following is a full, clear, and exact description, ret erence ,being had to the accompanying drawings, forming part ott this specification, in which-` p y F igure 1. is a plan view of one form of device constructed in accordance with my invention;

Figure 2 is a plan view of the device on a larger scale, with the cover removed;

Figure 3-is atransverse sectional view on the line HI-lll oi" Figure 2, and in which the advanced cam 'for the plunger at the left-hand side has been removed;

Figure fl: is an irregular sectional plan view on the line .FV-lV ot' Figure 3;

Figure 5 is a sectional view on the line V-V ot Figure l, with the shell andcover removed; and

Figure 6 is a development of the device.

This invention relates to an improvement in permutation mechanism, and is designed to provide an efficient device, in which the driven member is moved step by step to its operative position by means of actuated devices, when said actuated devices are actuated in a predetermined order, together with means for moving the driven member step by step to its inoperative positiomwhe'n any ot the actuating devices are operated out ot their order.

The device as shown in the drawings is more particularly designed for actuating a switch tor controllingan electric current, although the permutation fmechanism may be used in connection with other devices than electric switches.

The precise nature ot my invention will be best understood by reference to the accompanyinpdrawings, which will now be described, it being; premised, however, that various changes may be made in the details of construction, and the `general arrangement of the parts, without departingy from the spirit and scope of my invention, as defined in the appended claims.

In the drawings the reference character 2 designates the base of the device., which is provided with an upwardly eXtending hol low spindle 3, and a flange portion 4. This flange portion 4 is provided with a balli-ecess .for the reception ot balls 5, which are interposed between what l have termed the driven member 6 and the flange on the base.` This driven member also has a bearing on the hollow spindle 3, and is provided with a ball recess in the upper portion of its boss r for the'reception of balls 8, which balls also are seated in a recess in the under tace of a collar 9, which surrounds the spindle 8. This collar 9 is secured to the spindle bv means of a screw 10,011 may be secured thereto in any other desired manner. Bv this arrangement the driven member is free to rotate about the spindle 3. Formed .integrally with the base 2 is a boss 11, which is bored out for the reception of a spring' 12, which engages a centering member 13, which in this case is a ball and which is arranged to engage notches 14 on a sector member 15 extending;y downwardly from the driven member 6. The spring 12 is held in position by means ot a screw 16, which engages the threaded oii'ter end of the openingin the boss. Entending radially fromy the sector member 15 are projections 17 which are arranged tovform positive stops to prevent the driven member from being` jarreol or moved beyond a predetermined point in either direction, and which are arranged to engage opposite sides of the boss 11. 18 is a trip or return wheel rotatably mounted on the driven member 6. and whichis provided with an `annular flanger 19. ThisA flange 19 is seated in any annular recess formed between the upper face of the driven member, and a iia-nged collar 20, which iianged collar is secured to the driven member by screws 21, which are clearly shown in Figure 2, the arrangement being-` such that the trip or return wheel isfree to rotate or oscillate on the' driven member. y v

Surr'oundingF the base 2 is a shell 22which is connected to the base by means of three screws l23, which pass through bosses 24 on the shell and which screwsengage threaded openings in the base 2. This shell is provided with 8 'sets of guiding; projections 25 for the reception of gfuide members 26 which extend y ldownwardly from actuating plungers 27.

In the construction shown there are eight of such actuatingr plungers, whichare normally held in their elevated positions byr means of springs 2S, each of which surrounds a pin secured to the base 2. rihe upper ends oit these pins Q9 are seated in openings 30 in their respective plungers, and which openings are ot su'liicient depth to *i 'rmit the plungers to be depressed a suhcicut dista ce to actuate the trip and driven member as hereinafter described.

The driven member 6 in the form shown fided with thirty-two threaded openindicated at in Figure 6, and which are also shoivn in Figure These threaded es are arranged to receive pins 32, vshown in Figures 2 ande. 1n the cons ruction shoivn there are 'iour pins mounted in the openings Connected to each opt the actuating plungers, with the exception et one plunger, is a driven member actruxtino' cam 33, and Which are arranged to advance the driven member when operated in proper sequence. Connected to the E2 is a pad ot insulating@- materiah and on which are. iixedly mounted contct members 35 and 3G? which are adapted to be connected in a line through which the electrical current .is to be closed. 37 is a contact shoe or switch member mounted n an insulating pad 38 which is connected to the dit von member 6, and when the driven member is moved to its operative position., as shov-sn in F i gere G, the circuit will be closed through the device.

The trip or return Wheel 18 is provided with thirtvtrvo angular cam members, as i' cated at 39 in Figure 6, which are arrenged to be engaged bv cam projections 40 on the plunger-s 27, and are arranged to move tie trip Wheel to the lett as viewed in Figure (i. lviounted in a guide projection l-l on the driven member 6 is Yfriction pmvl ft2, which is held in its elevated position in en- ;ijaffement with the angul ar cam members V trip wheel 18 bv means ot a spring to trictionallv hold the driven member G and the trip Wheel 1S ,in predetermined positions with relation to each other.

1n the drawings 1 have designated the dit Vferent plungers l to Villand the combination oi this particular device is Il. V, 1V. ll. and when the driven member is in its inoperative position5 or the pavvl 13 is in the last notch 14; to 'the rie-ht as viewed in Fitnire 6. the driven member ivill be moved to its full inoperative position. When it is desired to move it to its operative position, the operator Vfirst presses plunger Il. which will advance the driven member 6 to the right and advance the pin 32. which Was formerlv directlv under plunger Il to the next position at the rie'ht. and bring a pin 32 directlv under plunger V. `When plunger V is operated the driven member Will be moved another step and bring' a pin 32 under plunger 1V. Plung'er 1V is then operated to move the driven member 6 another step, which Will bring a pin under plunger 111 and at which time the Contact shoe or switch member vvill be resting on Contact 35 but will not be in contact ivith contact 36. plunger lll is then actuated to move Vthe driven member to the position shown in Figure G, which will close 'the circuit thr ugh contacts and 36, and at which time there ivill be a pin 32 directly under plunger l, and it the actuating cam 33 were lett on this plunger l, and it should be actuated, the mechanism would be jammed.y and therefore i vprefer to remove a cam member 33? trom the plunger at the right or counter clockwise to the first plunA ,ser oit the combination.

it 1 uscthree steps for advancing the driven member to its operative position 'from its full inoperative position it Will not be necessary to remove one oit the actuating cams from a plunger, or it I use forty teeth or angular cam members on the trip Wheel and forty tapped openings in the driven member, the device can be moved i'iour steps Without placingany of the pins in a position to jam the device When using a tour-step combination.

1t ivill therefore readil7 be understood that it the act-Unitingplungers are moved in their proper sequence, the driven member will be moved from its inoperative position to its operative position in tour steps, and when the plunners are moved in their proper sequence the driven. member is moved to the right by the actuating cams 33 engaging the pins 82. While the trip wheel 18 is moved to the lett by the cam projections 4d), which enthe ang'ul ar cam members 39 on the trip Wheeln and during` such movement the friction paivl -l-Q Will pass under the angular cam members 39. li' any ot the plungers are operated out oi'4 their order` the cam projections l0 will rotate the trip or return Wheel 18 to the lett`r and as the trictional engagement between pavll and the trip Wheel is greater than the trictional engage ment et the centering` member 153 with the notches ich the driven member ivill be moved to the lett one space tor the movement of each plunger which is moved out otseouence.

lu the drawings the trip Wheel 18 is provided With thirt'v-tvvo teeth. the number being' equal to the number ot tapped openings in the driven member G. The arrangement is such that when the plungers 27 are in their elevated positions. the trip Wheel 18 can be rotated on the driven. member G, in either direction. B v this arrangementthe trip Wheel may be set in any position with relation to the driven member. as the friction pmvl 4Q will position the trip Wheel with relation to the driven member. i

lr' desired.y 1 may, hovveven form a trip Wheel which is only provided With eight annular cams, which are arranged to engage one side of the cam projections 40 When the plungers are in their elevated positions. The other sides of the cam projections must, however, be cut away a suilicient distance to permit the trip wheel 18 to be advanced the distance between the two tapped openings in the driven member, or at least a distance equal to 11 and l5. When the trip wheel is made in this form, it is provided with five teeth arranged to be engaged by the pawl 42, which are spaced l1 and 15 from each other. y

` In the drawings I have merely shown a structure in which the contact slice is arranged to close one circuit, but it will readily be understood by those familiar with the art that a circuitr may be closed at the second, third and Jfourth positions.

By such an arrangement the switch when in its first position would be in an open position, when moved to its third position the switch contact might close the circuit through an electric lock for unlocking the starting motor, and when moved to the fourth position the circuit `through the ignition system might be closed. l/Vhen the device is moved in the reverse direction, the circuit to the ignition system would be broken when passing from thefourth to the third position, When passing to the second position a circuit might be closed through a magnet for locking the starting motor or breaking the circuit thereto, and when moved to its first or oit position the circuit to all of the devices would be broken.

By this arrangement the starting motor can be operated when the switchmember is moved to the third position andy which would be held in this position until after the switch contact is moved back to its second position, which would break the circuit or lock the mechanism to prevent the rotation of the motor.

It will be readily understood by those familiar with the art that other circuits may be controlled by this device than those mentioned, and that. may use a greater or less number of positions to ,which the switch is moved than described and shown.

The advantages of my invention result from the provision of permutation mech anism which is arranged to move the driven member step by step to its operative position when the actuating plungers are moved in' proper sequence, and which is also so arranged that the driven member will be moved backward one step at each time that any of the actuating plungers are moved out of sequence excepting when the driven member has been moved to its full oit position.

Another advantage results from the pro vision of mechanism which is so arranged that the driven member willbe moved step by step from its full off position to its full operative position if the plungers are moved in their prea-rranged order, and which will be moved one step from its full operative position toward its full off position when any of its plungers are operated, to break the circuit.

I claim:

` l.' Permutation mechanism, comprising a driven member, actuating' members, cooperative devices rbetween the actuating members and the driven member or moving the driven member step by step to its operative position when actuated in proper order, andmeans for moving the driven member backward step by step when any one of said actuating devices is moved out of order, substantially as described.r y' 2. ermutation mechanism, comprising a( driven member, actuating members, 'cooperating devices between the actuating members and the driven member for moving the driven member step by step to its-operative position when actuated in proper orde-r, means 'for moving the driven memberbackward step by step when any of the `actuating devices are moved out of order, and means Jfor centering the driven member in any of its shifted positions, substantially as described.

3. Permutation mechanism, comprising a driven member arranged to be moved step by step from its fully inoperative position to its operative position, actuating members, cooperating devices between the actuating members and the driven. member for moving` the driven member step by step to its operative position when actuated in proper order` and means cooperating with lthe actuating members and the driven member to move ther driven member backward one step from its fully operative lposition 'when any one oft said actuating members is operated ont of order, substantially as described.

p 4f. Permutation mechanism, comprising a driven member arranged `to be moved to its operative position by a step by stepy movement, actuating members. cooperative devices on the driven member and the actuating members for advancing the driven member step by step from its inoperative positionr to its operative position when the actuating members are operated in a :predetermined ord'er, andmeans actuated by any of said actuatingdevices for moving the driven member backward one step away from its operative position when the actuating members are operated out of order, substantially as described.

5. Permutation mechanism, comprising a driven member, actuating members, cooperative devices between the actuating members and the driven member for moving the driven member step by step to its operative position when actuated in proper order, and cooperative devices between the actuating members and the driven member for moving the driven member step by step from its opeiative position to its fully oit position when 'any or' the actuating' deviaes are moved out ot order, substantially as described.

6. permutation mechanism, comprising a driven member, arranged to be moved to its operative position by a step by step movement, interchangeable pins on sait driif'cn member, a plurality ci'l plungers having; cams thereon arranged to engage said pins when moved into alignment with the cams to advance the driven member one step toward its operative position, a trip member having,` cams thereon, a cam projection on each plunger in alignment lwith acam on the trip wheel and arranged to move the trip wheel backward when any of said plungers are operated, means tor holding,- the driven member in its shifted position, and a friction device between the trip wheel and the driven member arranged to move the driven member backward when the trip wheel ismoved by one ot the plunger-s which ismoved out of order, substantially as described.

7. Permutation mechanism, comprising,` a driven member having actuating` members thereon, atrip wheel having a plurality ot actuating members thereon, a 'friction device between the trip wheel and the driven member, a plurality ot actuaning` plungers, said actuating plungers havingv means tor simultaneously moving` the trip wheel in one direction and the driven wheel in they opposite direction when the driven member is advanced, substantially as described.

8. Permutation mechanism, comprisinga driven member arranged to be moved step by step in either direction within a predetermined limit, means tor centeringv said driven member at each ot its shifted positions, a plurality7 ot shiitable pins connected to the driven member, a trip wheel mounted on the driven member, a plurality of cams on said trip wheel, actuating plungers, cams on said actuating plungers for engaging the pins on the driven member when the plungers are actuated in a predetermined order', cam projections on said plungers, said cam projections being` arranged to more the trip wheel backward and then forward. during each reciprocation ot any of the plungers, and a friction pawl member connecting the trip wheel to the driven member ai anged to move the driven member backward one step when any of the plungers are actuated ont of their orden, substantially as described.

9. Permutation mechanism, comprising a driven member arranged to be moved step by step to its operative or inoperative position, a `plurality ot actuating pins thereon,

actuating` plungers, cams on said plungers arranged to engage the pins on the driven member when actuated in a prearranged order to move the driven member step by step from its inoperative to its operative position, a trip wheel, actuating` connections between thek trip wheel and cach or" the plungers -for oscilla-ting the trip wheel when aufv ot said plungers are actuated, and a spring actuated friction oawl connectinthe trio l e i member step by step to close thecircuit when said actuating members are operated fiii proper sequence, cooperative devices on said actuating members and the trip wheel for oscillating the trip wheel when any of said actuating members are operated, and a connection between the circuit closing member and the trip wheel tending` to return said circuit closing member one step when'the trip wheel is moved in one direction, sub-H stantiallyas described. n

1l. l'n a permutation meclianism,`a series ot actuating members, a circuit closing inember, cooperating devices arranged to move the circuit closing member step by step to close the circuit when operated in proper sequence, a trip wheel arranged to be oscilla'lzed, connections between all ot said actuating` members and the trip wheel for oscillettingv the trip wheel when any one or said members are actuated and` a 'yielding con" nection between the trip wheel and-the circuit closingmember arranged to move the circuit closing member toward its ott position when the actuating members are moved out ot order, substantially as described.

in testimony whereof, l have hereunto set my hand.

JESSE B. HELLER. 

